baber/WOPTO huggingface dataset:
Patent GB-1400150-A (GB)
Title: Diaphragm pumps and pump assemblies
IPC: F04B43/00
Filed: 1971-11-30
Abstract: 1400150 Diaphragm pumps B E HART 14 Nov 1972 [30 Nov 1971] 55628/71 Heading F1A A pump, e.g. for water, comprises a plurality of pumping chambers each defined within a  respective tubular diaphragm 11, the exterior of which is subjected to pulsating hydraulic pressure by a respective piston 8 acting in a cylinder 9 connected to the chamber 12 surrounding diaphragm 11. Pistons 8 are reciprocated by an eccentric 5 with balance weights 35, and have ports 32 receiving liquid from liquid-filled casing 4, Air is bled from actuating chamber 12 through a valve 24 or a passage 26. Inlet and outlet ballvalves 17 and 19 are provided. A mandrel extends through the diaphragm interior, and has a plurality of radially-extending portions providing support surfaces for the diaphragm interior wall, Figs.3A and 3B (not shown).
Patent GB-1357468-A (GB)
Title: Can end closures
IPC: B65D17/32
Filed: 1972-12-04
Abstract: 1357468 Container end closures AMERICAN CAN CO 4 Dec 1972 [2 Dec 1971] 55824/72 Heading B8D An end closure for a container subjected to internal pressure has a pour opening 30 and a significantly smaller vent opening 32 which are closed by hinged raised tabs 34 and 48 respectively, the vent opening being remote from the pour opening. The peripheries of the tabs 34 and 48 underlie the peripheries of the openings 30 and 32 respectively and are hermetically sealed by frangible sealing means 46 comprising a plastisol grade polyvinyl chloride combined with a plasticizer and compounding ingredients, a plastics tape, an adhesive backed foil, or a hot melt material. The pour opening may be circular or tear drop in shape and may be surrounded by a raised bead 42 which may be interrupted at the hinge connection. The hinges (36, 54) are situated radially inwardly of the openings and have a width of 0À062 to 0À093 inches. The end closure has a peripheral reinforcing groove 24 and is conventionally seamed to the container.
Patent GB-559037-A (GB)
Abstract: 559,037. Venturi flowmeters. COLLIERY ENGINEERING, Ltd., and REEVES, H. C. Nov. 2, 1942, No. 15402. [Class 69 (i)] [Also in Group XXVI] The casing a of a screw fan &c. is provided, before or after the impeller, at the throat between the casing and the boss b' of the impeller b, with a pressure gauge g communicating with the throat through an annulus f and ports e. If the fan has an inlet duct h, the open limb of the gauge is connected by a tube i to an annulus k open to the duct. In another form, the limbs of the gauge are connected respectively to a point in the throat after the impeller and to a point in the delivery end of the casing. In the form of Fig. 2, the inlet duct is connected to one side of a diaphragm o in a closed chamber p by a tube q and to one side of a diaphragm s in a chamber t, by a pipe r while the throat m is connected by q to the other side of o, and the delivery l is connected by u to the other side of s. The two diaphragms are connected to opposite ends of a lever connected to a valve w or electric switch controlling a valve x in a byepass y between the inlet and delivery, to allow a portion of the delivered fluid to return to the inlet if the delivery pressure is excessive.
Patent GB-1439265-A (GB)
Title: Unitary structure
IPC: B28B1/52
Filed: 1973-12-04
Abstract: 1439265 Laminates NISSAN MOTOR CO Ltd 4 Dec 1973 [7 Dec 1972] 56048/73 Heading B5N [Also in Divisions B1 and F4] A method of forming a unitary structure 10 for use as a regenerative heat exchanger or as a catalytic carrier in a catalytic converter for an automative exhaust system and composed of a stack of ceramic corrugated sheets 12a, 12b, 12c comprises: (a) preparing a plurality of flexible ceramic corrugated sheets 12a, &c. and a plurality of burnable support sheets (18a, 18b, Fig. 2, not shown) formed of organic material; (b) superimposing said corrugated sheets and said support sheets alternately one upon another, with the corrugations of each corrugated sheet being oriented at an angle to the corrugations of the adjacent corrugated sheet and (c) heating the superimposed sheets, e.g. in an electric furnace at 1300 C., to burn away the support sheets and to fuse together the corrugated sheets to form the unitary structure. The ridges of the corrugations 14a may be coated with an adhesive such as polyvinyl acetate, polyvinyl alcohol, polyvinyl acetal or polyacrylate containing ceramic material prior to superimposing the corrugated and support sheets upon one another. The corrugated sheets 12a may be formed from a mixture of natural or synthetic organic fibres and pulverized ceramic material such as cordierite, alumina or silica. The support sheets may be formed of paper containing flax fibres or a synthetic resin such as polyethylene. The unitary structure may be cut into any desired shape, e.g. rectangular or cylindrical shape.
Patent GB-1377119-A (GB)
Title: Mechanical rotary coupling
IPC: F16D11/10
Filed: 1972-12-07
Abstract: 1377119 Shaft couplings ALBERT-FRANKENTHAL AG 7 Dec 1972 [13 Dec 1971] 56609/72 Headings F2U and F2C A torque transmitting coupling between two parts (e.g. two shafts, or a shaft 14 and a gearwheel 1) comprises a stack of laminations 8 each in a plane containing the axis of rotation, in a (or each of several) circumferentially limited window in one part 1, clamped axially between V-section teeth 6, 7 phased as shown, torsionally rigid with the other part. The members 4, 5 mounting the teeth 6, 7 may be either bolted together, or be members of a clutch (Fig. 1), one 5 being movable axially by a cam 9. To allow free rotation in the clutch released position (top half of Fig. 1), the laminations may be acted on by axially biased rings 10, 11.
Patent GB-1171757-A (GB)
Title: Apparatus for Exposing One Face of a Flexible Web to a Predetermined Condition in the Presence of at least a Partial Vacuum.
IPC: H01J29/86
Filed: 1966-12-20
Abstract: 1,171,757. Recording and playback. MINNESOTA MINING & MFG. CO. 20 Dec., 1966 [20 Dec., 1965], No. 57045/66. Heading G5R. [Also in Division H1] Electron beam apparatus for irradiating a material to record or read out information comprises a gun chamber 8, e.g. at a pressure of 0À1 to 2 microns Hg., and a head 16 which has a concave lower surface 18 concentric with a drum 98 carrying the material in the form of a web 7, and a low pressure is maintained in the space between the concave surface 18 and the web 7 by means of slits 66, 67 and 84, 86 on either side of the beam aperture 17 which are interconnected by passages to form evacuable cells separately connected to pumps. The web is passed between reels 46, 48, Fig. 1, and partitions 34, 36 form loop chambers 40 on either side of the drum 28. The space between the partitions 34, 36 is evacuated via port 37 and the space above the web is open to the atmosphere at 107 so that a pressure differential acts to maintain the web in tension. A highpressure air chamber 56 supplies air to force the web into driving engagement with the drum and grooves 97, Fig. 3, in the surface of the drum serve to equalize the pressure across the web. A ball valve 19 is provided in the head 16 to shut off the aperture 17 when required. The recording material may be film material or combined layers of electron sensitive and fluorescent materials as described in Specification 989,526. The drum may be of transparent material with mirrors provided above and below the web for viewing and deriving a light image. Additional flap seals may be provided at each end of the drum and the passages in the head 16 between slots 66 and 67 and between slots 84 and 86 may be arcuate.
Patent GB-1408645-A (GB)
Title: Cameras
IPC: G03B17/42
Filed: 1972-12-11
Abstract: 1408645 Film advance AGFA-GEVAERT AG 11 Dec 1972 [9 Dec 1971] 57076/72 Heading G2A A film wind member which may be operated further after metered film advance has been completed (of advantage for shutter cocking and flashcube socket rotation) is connected to the input of a differential coupling having one output connected to a film spool drive member and a second output locked during metered film advance and freed at the end of metered film advance. As shown, a connecting piece 18 (rotating with a rapid wind lever 10) carries planetary gear wheels 19 which mesh with an annular gear wheel 22 (connected with a film key 20) and a sun gear wheel 16a having a ratchet wheel 17a engaged (during film advance) by a spring-biased locking pawl 30 and released therefrom on lowering of a spring-biased feeler 31 into a metering film perforation 24a. A non-return device for film key 20 is provided (not illustrated) so that return of lever 10 causes reverse rotation of ratchet wheel 17a with sliding action of pawl 30 (providing an acoustical signal) when further advance of the film is required. Lever 10 may be replaced by a knob, Fig. 5 (not shown).
Patent GB-1283579-A (GB)
Title: Filter
Inventor: HUTCHINS CHARLES KENNETH JR
IPC: B01D35/30
Filed: 1969-11-21
Abstract: 1283579 Oil filter FRAM CORP 21 Nov 1969 [21 Nov 1968] 57191/69 Heading B1D [Also in Divisions El and E2] An oil filter housing 10 enclosing replaceable element (12) has a peripheral out-turned lip 11 and is secured to base 14 by pushing the lip 11 axially into annular recess 20 in the base, the lip engaging chamfered surfaces 52 of a plurality of arcuate jaws 40, to force them outwards against the pressure exerted by garter spring 50, and finally snapping into grooves 46 in the jaws as shown. Any internal fluid pressure developed in housing 10 tends to pull lip 11 axially out of recess 20, but this causes jaws 40 to slide up corresponding surface 26 of the recess to grip the housing harder. O-ring 30 seals between the housing and base 14. To release the housing, an annular tool (60) is advanced axially thereof (Fig. 1 not shown) to force jaws 40 clear of lip 11. Base 14 may be located above the housing to avoid spillage when dismantling.
Patent GB-575606-A (GB)
Abstract: 575,606. Ignition systems. BRITISH THOMSON-HOUSTON CO., Ltd., ROBINSON, T. F., COE, R. T., and WELCH, D. F. Sept. 10, 1942, No. 12809. Addition to 535,238. [Class 7 (iv)] [Also in Group XXXV] A system of the separate-transformer type comprises a low-tension generator having a multi-pole rotor 1 of permanent-magnet type, a stator 5 having the same number of poles 6 and wound with series or parallel connected windings 7 arranged in two or more groups, each connected to a separate contact-breaker A and ignition transformer B, the secondary of which is connected by a distributer D to sparking-plugs, as in the parent Specification. The generator has an even number of poles and the rotor 1 is provided with high-permeability pole tips and with short-circuited windings 4 which embrace the magnet poles 3, so that the effective inductance of the stator windings is controlled by the relative position of the rotor and stator poles to give a lower effective inductance while the spark persists. The windings 4 may completely embrace the poles, pole tips and magnet yoke, and may be a squirrel-cage winding provided by metal cast around the poles and yoke. A portion of each pole 6 may be embraced by a shading winding as in Specification 517,543, [Group XXXV]. Additional control of the stator winding inductance may be effected by providing magnetic slot wedges 9, Fig. 4, between the poles 6 ; these consist of laminations riveted together and surrounded by insulating material 10, or of a bundle of cylindrical iron wires embedded in a resin. The same number of stator poles in each group may be omitted to provide spaces for the location of the ignition transformers. Specification 545,857 also is referred to.
Patent GB-1249677-A (GB)
Title: Improvements in machines for the treatment of textile yarns
Inventor: HOWORTH FREDERICK HUGH
IPC: D01H1/40
Filed: 1968-12-05
Abstract: 1,249,677. Carrying away unwanted yarn. JAMES HOWORTH & CO. Ltd. 4 Dec., 1969 [5 Dec., 1968], No. 57715/68, Heading D1D. [Also in Division F2] A clamp for connecting a flexible tube B to a doffer suction tube C of a textile machine comprises a pair of arms which substantially encircle the tube and a nipple b to engage in a hole in the wall of the tube, the nipple being formed with an extension to receive an end of the flexible tube B. The ends of the arms may as shown be held together by a nut and bolt or by magnets or the arms may be formed of plastics material and be a spring fit on the tube C. The tube B may carry away unwanted yarn from a textile machine.
Patent GB-1453984-A (GB)
Title: Thermo printing head
IPC: B41J2/345
Filed: 1973-12-13
Abstract: 1453984 Selective printing KOMBINAT ZENTRONIK VEB 13 Dec 1973 [14 Dec 1972] 57857/73 Heading B6F Thermographic print head includes a semiconductive layer acting as the heatable resistance layer, a first metal layer of a series of conductors and a second metal layer comprises a common return conductor or a series of conductors. In Fig. 1 the first layer of conductors 2-8 and common return conductor 10 define the areas of the semiconductive layer 9 immediately between them as the heating areas. A quartz layer 11 is provided over the layer 10. The layer 9 may be of germanium. In Fig. 2, the first layer comprises conductors 21 the second layer by conductors 23 and semiconductor by layers 22. Heating occurs where conductors 21, 23 overlap. The semiconductive layer may be polycrystalline or monocrystalline.
Patent GB-1415177-A (GB)
Title: Apparatus for germinating and drying malt
IPC: C12C1/15
Filed: 1972-12-15
Abstract: 1415177 Malting kiln MIAG MUHLENBAU UND INDUSTRIE GmbH 15 Dec 1972 [15 Dec 1971] 58112/72 Heading C6E [Also in Division F4] A kiln for malting comprises a central shaft 7 surrounded by superimposed circular chambers each containing a horizontal rack 13 which divides the chamber and rotates about the shaft and is associated with a worm device 14' for distributing incoming material and for discharging said material after treatment, said worm device being suspended within the chamber and being capable of vertical movement. The means for raising and lowering the worm may comprise two threaded spindles 17 which are motor driven 20, and may include gear trains 18 and provisions 17 for the spindles to pass through the chamber roof when in the raised position, as well as guide arms 23 carrying rollers 25 which engage vertical rails 26 mounted in the chamber. The worm device may comprise a support 16 from which the worm is suspended, being driven by motor 21, and the support may also carry a levelling plate 28, which may be in the form of a box, ending in a blast nozzle directed towards the worm.
Patent GB-1298139-A (GB)
Title: Modified polyester articles
IPC: D06M15/507
Filed: 1970-12-07
Abstract: 1298139 Surface modified polyester materials BEAUNIT CORP 7Dec 1970 [2 Feb 1970] 58113/70 Heading B2E [Also in Division D1] Surface modified polyester articles having soil release properties and dispersed dyeability characteristics are prepared by a process which comprises treating a copolyester comprising, in weight per cent, at least 85 of ethylene terephthalate units and from 1 to 15 of ethylene dimerate units with an aqueous dispersion of a second copolyester comprising, in weight percent, at least 40 of polyoxyalkylene groups, at least 9.5 of ethylene terephthalate units and at least 0.5 of ethylene dimerate units followed by heating the treated copolyester to at least 80‹C to provide a durable coating of the composition on the polyester. The copolyester articles may be in the form of films, fabrics, fibres and especially filaments. The viscosity of the copolymer ranges from 0.3 to 0.9 as measured in 0.4% solution in trifluoroacetic acid at 30‹C. Preferably the treating copolyester is applied from a dispersion in water or aqueous medium. Other modifying agents, such as delustrants, antioxidants, plasticizers and stabilisers may be incorporated in the polyester article and / or the treating composition.
Patent GB-1244169-A (GB)
Title: Flow-rate control valves
Inventor: SHORE ANTHONY GEORGE LITHGOW
IPC: G05B11/01
Filed: 1967-12-22
Abstract: 1,244,169. Valves. DOWTY TECHNICAL DEVELOPMENTS Ltd. 2 Dec., 1968 [22 Dec., 1967], No. 58370/67. Heading F2V. [Also in Division G3] A valve for controlling the rate of flow between an inlet 45 and an outlet 55 includes a poppet-like member 49 co-operable with a seating 47 and having a restrictor 51 positioned substantially along the longitudinal axis thereof to connect the inlet with a spill orifice 30, a spill-controlling member 34 co-operable with the orifice, and means 36, 37 for controlling the position of that member with respect to the orifice to control the spill and hence the extent of lifting of the poppet-like member away from its seat. In the embodiment illustrated, four poppet members 48, 49, 58, 59 control the connection of fluid supply and exhaust ports 40, 43 with ports 41, 42 leading to a doubleacting service, the valves being arranged in pairs 48, 59 and 49, 58, each controlled by a single spill-controlling member 34 or 35. The latter members consist of reeds which are vibrated alternately by a driving member 37 connected to a reversible torque motor 36 energized by high-frequency square waves the mark-space ratio of which varies in proportion with an analogue input signal to a converter. When the double-acting service reaches the required position, the electrical input to the converter is cancelled. In a second embodiment, a single poppet-like member is controlled by a reed driven directly from a tongue motor. Light coil springs for loading the poppet members may be omitted and in other alternative embodiments, piezo-electric devices or high-speed solenoid valves are used.
Patent GB-1410246-A (GB)
Title: Electromagnetic switching device
IPC: H01H33/65
Filed: 1972-12-18
Abstract: 1410246 Relay adjustment SIEMENS AG 18 Dec 1972 [16 Dec 1971] 58410/72 Heading H1N The yoke and/or core 1 of an electromagnetic switch is adjustable to set the operating air gap by means of a rotatable disc 4 having inclined surfaces 10 lying on co-operating inclined faces 9 of a base part 5. The yoke 1 is urged against the disc 4 by a spring 3 and the disc 4 has springy parts 12 which index in recesses 11 in the base port 5. Alternatively the part 4 may be secured by forced out parts 13 of the slotted end 8 of the rotatable disc 4.
Patent GB-1444389-A (GB)
Title: Method of and means for casting ingots
IPC: B22D18/04
Filed: 1973-12-18
Abstract: 1444389 Casting ingots ALLMANNA SVENSKA ELEKTRISKA AB 18 Dec 1973 [21 Dec 1972] 58516/73 Heading B3F A method of casting an ingot comprises filling a mould 17 from below through an opening 18 by applying gas pressure to the space above molten metal contained in a ladle 12, moving the mould laterally so that the opening 18 is closed by a plate 16, and, after the mould has left the plate 16, swinging the mould to a position in which its filling opening 18 faces upwardly, the ingot being discharged from the mould while the latter is in its inverted position. A plurality of moulds may be arranged along a circular path, each mould being pivotable about a transverse shaft (22). During their movement along the said path the moulds co-operate with a guide track (23) which controls their swinging movement about the shaft (22) and is shaped so that there is an interruption in the swinging movement of each mould after it has moved through an angle of just over 90 degrees. The plate 16 may be made of metal or ceramic material and is provided with cooling members to solidify the metal in the bottom of the mould before the mould leaves the plate.
Patent GB-1450209-A (GB)
Title: Method of and means for applying developer to a membrane having  a developable face
IPC: G03G15/10
Filed: 1973-12-18
Abstract: 1450209 Developing apparatus AUSTRALIA COMMONWEALTH OF 18 Dec 1973 [18 Dec 1972] 58678/73 Heading G2H As shown in Fig. 2, liquid developer is pumped from a duct 22 terminating in a planar nozzle 23 to direct the developer through a transversely planar Venturi developer zone 20 formed between a latent electrostatic image bearing surface of a copy sheet 38 and a transversely planar convex plate 21. In another embodiment, Fig. 3, air is blown from the duct 44 through the nozzle 45, and draws liquid developer from the duct 46 by its Venturi effect over the opening 47.
Patent GB-1429210-A (GB)
Title: Polyurethane textile adhesive
IPC: C09J175/00
Filed: 1973-12-19
Abstract: 1429210 Coated fabrics AMERICAN CYANAMID CO 19 Dec 1973 [10 Jan 1973] 58897/73 Heading B2E [Also in Division C3] Fabrics may be flocked using a polyurethane adhesive composition which is in the form of an aqueous dispersion and which is prepared by (i) forming an NCO-terminated prepolymer by the reaction of tolyene diisocyanate with a mixture of three polyol compounds having the formulae  wherein R is hydogen or C 1-3  alkyl wherein R is hydrogen or C 1-3  alkyl and R<SP>1</SP> is hydrogen, C 1-3  alkyl or hydroxyalkyl and wherein R 1  is hydrogen or C 1-3  alkyl and q is such as to provide a molecule weight of 1700 to 5000, the molar ratio of (a) to (b) to (c) ranging from 2.0-7.5:1.0:2.0-7.5 and the NCO/ OH group ratio being from greater than 1:1 to 1.7:1; (ii) forming a latex by stirring the prepolymer in an aqueous medium containing a tertiary (C 1-3 ) alkyl amine until all the residual isocyanate groups have reacted with water and (iii) adjusting the viscosity of the latex to 500 to 150000 cps by adding a thickening agent thereto, and either step (i) being conducted in the presence of 10 to 30% by weight based on the weight of prepolymer of a plasticizing agent, or a plasticizing agent being added in an amount of 10 to 30% by weight based on the weight of prepolymer, after all of the isocyanate groups have been reacted with water in step (ii). Preferred compounds (a); (b) and (c) are 2. 2-bis(hydroxymethyl)propionic acid; 2-ethyl-2-hydroxylmethyl-1, 3-propane diol and a polypropylene glycol respectively. The tertiary amine may be triethylamine. Polyester plasticizing agents and polyacrylic thickening agents are preferred. In specific Examples a cotton twill is coated with the adhesive composition and a rayon flock is sifted onto the wet adhesive. After drying the flocked fabric may be dyed.
Patent GB-1361760-A (GB)
Title: Electroless metal plating of synthetic polymeric resin surfaces
IPC: C23C18/24
Filed: 1972-12-20
Abstract: 1361760 Conditioning for electroless plating SHIPLEY CO Inc 20 Dec 1972 [3 Jan 1972 10 Oct 1972] 58900/72 Heading C7F An epoxy, phenolic, or polyester-resin substrate is conditioned for electroless plating by contact with a liquid comprising at least one 2- pyrrolidone. The pyrrolidone may be wherein R, Y, are C 1 -C 5  aliphatic groups, C 2 -C 5  aliphatic ether groups, C 1 -C 5  alkyl substituted with a polar group, e.g. -NO 2 , -SO 3 OH, -Cl, -Br, -I, -F, -CO 2 H, -NH 2  or -CHO, or are H; n is 0-3 inclusive; it is preferably liquid at room temperature or a solid liquefiable at 90‹ F, and may be used alone, or with up to 50 vol per cent water, inert organic liquid, or weak solvent for the plastics; a surfactant may be added, and immersion is for 0À5-15 mins. from 60‹ F to the softening point of the plastics. Typically a substrate is precleaned for 1-3 mins. in degreaser, conditioned as above, etched in strong oxidant, e. g. containing at least 3 lb/gall. CrO 3  at 110‹ F or higher for 2-10 mins., spray rinsed, optionally with alkaline neutralizer, treated with SnCl 2 /PdCl 2 , electroless-coated with Cu or Ni and electro-plated with Cu, Ni, Au, Ag or Cr then baked at 200‹ F for two hours or more; high bond strengths, e.g. 15 pounds/ inch, are obtained.